Using the numbers 1,2,3,4,5,6,7,8 only once devise 2 addition problems with the sum 7785?

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2006-09-20 09:51:30 · 2 answers · asked by Monte T 6 in Science & Mathematics ➔ Mathematics

6327 +
1458

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6427 +
1358

====

6358 +
1427

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there is some more... left as an exercise !

2006-09-20 09:59:07 · answer #1 · answered by m s 3 · 0⤊ 0⤋

3518 + 4267 = 7785

The 2nd addition set it easy enough, just switch the first two numbers in each so:

4218 + 3567 = 7785

2006-09-20 17:02:13 · answer #2 · answered by jrobbins324 2 · 0⤊ 0⤋